1228544 has 18 divisors (see below), whose sum is σ = 2452800. Its totient is φ = 614144.

The previous prime is 1228543. The next prime is 1228547. The reversal of 1228544 is 4458221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144 + ... + 2655.

2^1228544 is an apocalyptic number.

It is an amenable number.

1228544 is a deficient number, since it is larger than the sum of its proper divisors (1224256).

1228544 is an frugal number, since it uses more digits than its factorization.

1228544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815 (or 4801 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1228544 is about 1108.3970407756. The cubic root of 1228544 is about 107.1018333527.

The spelling of 1228544 in words is "one million, two hundred twenty-eight thousand, five hundred forty-four".